Frequency separation system and apparatus



Oct.

12, 1931.,l` D. G. SMELLIE 2,095,456

SUCTION CLEANER ADVERTISING DISPLAY Filed Dec, 15, 19134v 2 snees-snet 1 Mii! s .El

AT1-onus? oct. 12, 1937. D, SMELUE l 2,095,456

SUCTION CLEANER ADVERTISING DISPLAY Filed Dec. 15,` 1954 2 Sheets-Sheet 2 INVENTOR Donald 71 me/[i- ATTC RN EY Patented Oct. 12, 1937 f UNITED STATES 2.095.4564 sUo'rIoN CLEANER ADVERTISING DISPLAY Donald G. Smellie, Canton, Ohio, assignor to The Hoover Company, North Canton, Ohio, a corporation of Ohio Application December 15, 1934, Serial No. 757,613

6 Claims.

l The present invention relates to the advertis-l ing display devices in general and particularly to an improved device to display the surface covering vibration effected during the cleaning of a surface covering.

It is an object of the invention to provide a new and improved visual display device to evidence' covering lvibration effected during the cleaning of a surface covering by a modern suc-y tion cleaner. Another object ofthe invention Iis to provide a display in which the surface cov ering vibration is illustrated diagrammatically. Still another object is the provision in a display device, of a moving suction cleaner, means to l5 measure the vibration of a surface covering cleaned by the suction cleaner, and of additional means to illustrate diagrammatically the intensity and amplitude of that vibration. These and other more specific objects will appear upon 20 reading the following specification and claims and upon considering in connection therewith the attached drawings to which they relate.

Referring now to the drawings in which a preferred embodiment of the present invention is 25 disclosed: y

Figure 1 is a side elevation of the display delvice constructed in accordance with the present invention with certain parts broken away;

Figure 2 is a vertical section through the dis- 30 play device upon the line 2-2 of Figure 1;

Figure 3 is a horizontal section upon the line 3 3 of Figure 2. In the cleaning of a surface covering by a modern suction cleaner two agencies effect the 35 cleaning. The passage through and over the surface covering of a high velocity stream of air is one of those instrumentalities. The high fre,- quency vibration of the surface covering bythe agitating means embodied in the cleaner is the 40 second. The co-operation of these two means eectively removes the embedded foreign matter. The first of these two agencies is old and well known. The second is embodied in only the most advanced cleaners. In the display device con- 45 structed in accordance with the present invention means are provided to illustrate diagrammatically the effectiveness. of the agitating means embodied in the suction cleaner to effect the second agency of cleaning. 50 Referring again to the drawings a display table I is shown. Upon the top of this table, which is somewhat longer than it is wide, is an enclosure formed by a suitable frame 3 and glass sides 2, 2 etc. Extending transversely across the table bop and lying ush with its normal sur- At the front and at the rear of the cleaner body are attached spaced pairs of flexible straps 1, 1 which pass downwardly into the body of the table over rollers 8, 8 at spaced points upon the opposite sides of the strip of carpet 4. These Vstraps are adapted to exert a moving force to pull vthe cleaner back and forth across the strip of surface covering 4, and there may be provided within -thebody of table l any suitable means .capable of moving and reversing the direction of movementof the straps to accomplish the purpose stated.

At one side ofthe strip of carpet 4 is positioned a vibration measuring element 9 which includes an upwardly facing mirror lil and which is pivotally supported by mounting means Il. The forward at edge of element 9 contacts the carpet 4 between the rollers 5, 5 and closely adjacent the path of the cleaner 6, and any vertical displacement ofthe covering serves to pivot the element. 'I'he element is preferably springpressed downwardly into contact with the surface covering. As the cleaner is moved back and forth across the strip 4 by the pulling forces exerted by the straps 1, 1 the vibration impartedto the covering by the rotary agitator positioned -withinA the cleaner nozzle. willbe received by the. element 9. As the cleaner first moves on to the covering the vibrations received by the element 9 will be a minimum and will reach a maximum -upon the cleaner agitator being positioned immediately opposite the element. 'I'he vibrations received by the element thereafter decrease to a minimum as the cleaner passes to the opposite. end of the covering. The sequence is repeated as the cleaner reverses its direction of travel and again passes the vibration receiving element.

To evidence to an observer the vibration which is imparted to the surface covering by the cleaner agitator, means are provided to project a pencil beam of light onto a transparent screen. The

'light projecting means are indicated .generally by the reference character I2 and include an electric light I3 and a suitable projecting lens I4 which restricts the light to a pencil beam which strikes the surface of the mirror III. 'Ihe light creating means I2 are shown carried on the top of the table I by mounting means I5 which are attached to the table top immediately outside the enclosure formed by the glass Walls 2, 2 and their frame 3. It is entirely within the scope of the invention, however, to position the entire construction within the enclosure.

Above the mirror i0 carried by the vibration responsive element 3 is positioned asecondvrefleeting mirror I6 which is-so inclined Ythat the pencil beam of light reflected from the mirror I0 will, upon contacting its face, be deflected again to a point above the projecting lens I4. Mirror- I6 is supported in its position by a standard I'I which is located closely adjacent the mounting means II. y

Immediately above the projecting lensv I4 outside the enclosure upon the table is provided a reecting mirror I8 supported by means I9 and formed of a plurality of flat faces arranged as a cylinder which is rotatable about its major aids. An electric motorv 20 is suitably connected to thecylindrical mirror and is adapted to rotatev it at a constant speed. The angle `of inclination from the vertical of the major axis of the cylin drical mirror I8 is such that the light rays reflected from the mirror IB upon contacting its surface will be again deflected to a position near the top of the opposite side of the enclosure. At that p'oint a transparent screen 2i is provided which is visible from either side of the table as isan image reected upon it by the mirror I8.

In the operation vof the device constructed in accordance with the present invention, the suction cleaner 6 is moved back and forth across the carpet strip 4 by pulling forces exerted through the pairs of straps 1, 1. The carpet strip I is moved at intervals to prevent undue wear by the movement cf the wheels which support the cleaner. As the cleaner with its agitator passes over the covering the vibration imparted tothe covering is measured by the vibration receivingelement 9. As thecleaner first reaches the covering the vibrations received by the element will be a minimum, the distance, from the cleaner tovl the element being a maximum. The vibrations registered by the element 9 increase from that minimum to a maximum upon.the cleaner agitating element being positioned immediately opposite the element 9, as indicated in dotted lines in Figure 1.

The pencil of light thrown from the lightcreating means I2 through the projector I4 upon the vibrating mirror I0 is reflected from it to the mirror I6. The beam of light is reflected at any instance -in a line between the limits indicated by the dotted lines in Figure2. 4Were the elementr 9, and so the mirror '|0, to remain sta-l tionary, the reiiection of the light beam upon the mirror IE would be substantially circular in crosssection. Upon the element v9 being vibrated, the

light reflection upon the mirror I6 tends to assume a vertical line, the extent ofwhich is dependent upon the amplitude of the vibrations registered by the element. With the cleaner positioned 'immediately adjacent the'element 9, as

shown in dotted lines in Figure l, the vibrational displacement ofthe covering will be a maximum and theray of light will vary between the dotted line limits'indicated in Figure 2. From mirror IB the light ray, whether a stationary circle or a line of light, is reflected kto the rotating mirror I8.

As this mirror rotates each of its flat faces comes into contact with the light beam and during the upon the mirror IB by the movement' of the light ray thereon and records it as a wave formation upon the screen 2i. With the element 9 standing still the image upon screen 2i will be a ilat line. As the cleaner reaches the edge of covering and the vibration recorded by the element 9 is a minimum the wave recorded upon the screen will be of lovv amplitude and as the cleaner a'pproaches the element 9 the amplitude of the wave will'increase to a maximum as shown upon the screen in Figure 1. The frequency of the waves upon the screen can be varied by altering the relationship between the rotational speed of the rotating mirror I8 and of the vibrating element of the suction cleaner.

I claim: y l

1. In a display device, an advertising suction cleaner including surface vibrating means and visible from a predetermined position, a surface covering also visible from said position, means to exert a force to pull said cleaner back and forth across said covering, a vibration responsive element positioned on said covering to respond to the covering vibration at its point vof Ycontact therewith, a mirror carried by said element and said vibrated mirror, a rotating mirror include ing a plurality of flat faces arranged to receive the light beam reflected from said second mirror, and a transparent screen to receive the'image thrown 'from said rotating mirror and visible from said position.

2. In an advertising display device, a suction cleaner including vibrating means and visible from a predetermined position, a surface covering undergoing vibration visible from said position, means to reciprocate said cleaner on said covering, and means to indicate by a wave of light the vibration imparted to a part of said covering passed by said cleaner, said means including means to createa beam'of light, means to vibratingly deect said beam in synchronism with the v vibrations of said covering, and means to transform said deflected beam into a wave formation having an amplitude dependent upon the amplitude of covering vibration and means visible from said position to receive light from said last mentioned means.

' 3. In an advertising display device, a visible suction cleaner, a surface covering adapted to receive surface vibrations and visible from a predetermined position, automatic means to move said cleaner over said covering in a predetermined manner, and means to evidence the vibration of said covering which means are also visible from said predetermined position.

4. In an advertising display device,'a suction cleaner including surface vibrating means and visible from a predetermined position, a surface "covering adapted to be vibrated by said cleaner tion of said covering, means to` evidence the vi- 5 be vibrated. cleaner including surface vibrating means and 5. In an advertising display device, a suction visible from a predetermined position, a surface cleaner including surface vibrating means and covering adapted to be vibrated and visible from visible from a predetermined position, a surface lsaid position, means to move said cleaner over covering adapted to be vibrated by said cleaner said covering, an element adapted to be vibrated 10 and also visible from; said position, means conby the vibration of a part of said covering and m tx'olled by said covering and adapted to be viincluding a mirror. means to 'project a pencil brated with an amplitude determined by the vibeam of light on said mirror, a rotatable multibration of said covering, and means to evidence flat-face mirror arranged to receive light rays revisually the vibration of said last mentioned` iiected from said mirror, means to move the dat 15 means including a vibrating mirror the amplifaces of said rotatable mirror past said ree'cted i5 tude of vibration of which is determined by the light rays at a constant speed, and a screen covering controlled means, means to throw a visible from said predetermined position to rebeam of light on said mirror, means to receive ceive the image thrown by said rotatable mirror. the beam reiiected from; said mirror and break it n down into a wave the amplitude of which depends DONALD G. SMELLIE. 20

bration of said last mentioned means visible from said position, and means to move said cleaner over said covering past said means adapted to DONALD G. SMELLIE. 1

upon the extent of vibration of said mirror, and a screen visible from said position to receive said light wave.

6. In an advertising display device, a suction CERTIFICATE oF CORRECTION.

catcher 12,` 1,957.

Itis herebyy certifi'edthat error appears in-the printed specification of the above numbered patent requiring correction as follows z Page' 2, second column, line 27, claim l, strike; out the words "Ina display device, anadvertising and insert instead In advertising display device, a; and that the said LettersPatent should be read with this correctionftherein that lthe same may conform to the record ofthe case in the Patent Office.,

' Signed and sealed this lst day of February, ii. D. 1958.

(Seal) Henry Van Arsdale,

Acting Commissioner of Patents tion of said covering, means to` evidence the vi- 5 be vibrated. cleaner including surface vibrating means and 5. In an advertising display device, a suction visible from a predetermined position, a surface cleaner including surface vibrating means and covering adapted to be vibrated and visible from visible from a predetermined position, a surface lsaid position, means to move said cleaner over covering adapted to be vibrated by said cleaner said covering, an element adapted to be vibrated 10 and also visible from; said position, means conby the vibration of a part of said covering and m tx'olled by said covering and adapted to be viincluding a mirror. means to 'project a pencil brated with an amplitude determined by the vibeam of light on said mirror, a rotatable multibration of said covering, and means to evidence flat-face mirror arranged to receive light rays revisually the vibration of said last mentioned` iiected from said mirror, means to move the dat 15 means including a vibrating mirror the amplifaces of said rotatable mirror past said ree'cted i5 tude of vibration of which is determined by the light rays at a constant speed, and a screen covering controlled means, means to throw a visible from said predetermined position to rebeam of light on said mirror, means to receive ceive the image thrown by said rotatable mirror. the beam reiiected from; said mirror and break it n down into a wave the amplitude of which depends DONALD G. SMELLIE. 20

bration of said last mentioned means visible from said position, and means to move said cleaner over said covering past said means adapted to DONALD G. SMELLIE. 1

upon the extent of vibration of said mirror, and a screen visible from said position to receive said light wave.

6. In an advertising display device, a suction CERTIFICATE oF CORRECTION.

catcher 12,` 1,957.

Itis herebyy certifi'edthat error appears in-the printed specification of the above numbered patent requiring correction as follows z Page' 2, second column, line 27, claim l, strike; out the words "Ina display device, anadvertising and insert instead In advertising display device, a; and that the said LettersPatent should be read with this correctionftherein that lthe same may conform to the record ofthe case in the Patent Office.,

' Signed and sealed this lst day of February, ii. D. 1958.

(Seal) Henry Van Arsdale,

Acting Commissioner of Patents 

